Programa Analítico
VI. PROGRAMA TEMÁTICO
10.20
Environmental Conditions
10.20.1 Weather
The weather criteria and maximum MOU or vessel movement for all personnel lifting operations shall be as follows: -
Maximum wind speed : 15 knots or 28 Km/h steady wind measured at 10 metres above ground level.
The work site supervisor shall ensure that the above weather criteria is met at all times during operation.
10.20.2 Visibility
Horizontal visibility shall be considered, and shall be at least 500 metres. Vertical visibility shall be such that the tip of the crane boom is always in full view by the crane operator.
10.20.3 Daylight
Workbasket operations shall only be carried out during daylight hours.
10.20.4 Rainfall & Electrical Storms
If the workbasket operation is proposed during a period of rainfall or electrical storm, consideration shall be given to the severity of the weather, and the operation postponed to more favourable conditions if there is any concern that it could effect the operation.
In all cases, when any of the above environmental conditions are exceeded all activities shall cease immediately, and workbasket activities may only resume when the environmental conditions return to acceptable values.
10.20.5 Communications
Radio communication shall be established between Work Site Supervisor, Crane Operator (hands free), Banksman and the lifted personnel. The crane operator shall have a full and unobstructed view of the workbasket operating area.
10.20.6 Crane
The Crane Operator shall hold a current, valid mobile crane operator's certificate, from a BSP approved training provider, and have a minimum of 6 months experience as a crane operator. The Crane Operator shall also have a minimum of 50 operating hours (logged) operating the crane to be used in the suspended workbasket operation. The crane operator shall not leave the crane controls throughout the duration of the suspended workbasket operation. He shall solely concentrate his activities on the suspended workbasket operation in progress.
10.20.7 Banksman
The Banksman shall hold a current, valid banksman’s certificate from a BSP approved training facility and have experience of workbasket lifting operations.
The banksman shall be easily identified by a brightly coloured banksman’s jacket. They shall also carry a working radio by which they can communicate as described under 10.20.5 “Communications” above.
10.20.8 Personnel Working from the Work Basket
Personnel working from the workbasket must be properly attired this includes safety helmet with chinstrap, safety footwear, coverall and approved full body harness.
Personnel will only undertake work on a voluntary basis. If they do not wish to work from the workbasket, they will not be forced to do so. See Appendix 6
An experienced person shall always accompany inexperienced people or those not trained in the use of suspended workboxes.
10.20.9 Tool Bags
Only the required tools and materials required to carry out the task shall be allowed in the workbasket.
10.20.10
Toolbox Talk
Toolbox talk shall be held prior to the personnel being hoisted, this will involve the Work Site Supervisor, crane operator, the following elements of the operation shall be included in the tool box talk: -
Crane actions, movements and signals.
Body positions, pinch points and personal stability Personnel protective equipment requirements
Safety aspects of the operation – Basket swing, Escape routes etc. Potential emergency situations
Expected behaviour of personnel being hoisted
10.20.11
Recovery Arrangements
A rescue plan shall be prepared for all personnel hoisting operations. All equipment required to implement the rescue plan shall be readily available prior to and during the operation.
Rescue operations can introduce their own hazards; therefore the planning and execution of a rescue requires particular care and attention including additional risk assessments before proceeding.
10.20.12
Planned maintenance
To ensure safe and satisfactory operation of the crane and workbasket, a properly planned maintenance system shall be established and used. Manufacturer's instruction books recommend that specific tasks be carried out at stated intervals, and these periods shall not be exceeded. They also specify the lubrication points that require attention, the interval or frequency of greasing and oil changes and the grades and quality of lubricant to be used. Furthermore, the instruction books will also cover other essential maintenance such as replacement of filters, frequency for checking the security of fixing bolts and recommended torque settings and other adjustments, e.g. brakes, hydraulic system integrity.
An effective planned maintenance system shall recognise the possible need to prohibit the use of the crane until essential maintenance work is carried out.
10.21 Administrative and Operational Duties
10.21.1 Work Site Supervisor
2. Satisfied with the fitness and training of the people to be work from the work basket 3. Satisfied with the visibility.
4. Check the crane and workbasket have current valid Inspection Certificates.
5. Check the crane and workbasket are registered and approved for workbasket operations with BSP’s Technical Authority.
6. Check suitability of wind speed for crane operations
7. Ensure participants are briefed and understand the requirements for workbasket operations.
8. Ensure that the Supervisors and Banksman are familiar with the workbasket operations requirements and handling of workbaskets.
9. Have verified the competency and experience of the crane driver.
10. Ensure communications are established with all parties concerned for the workbasket operations.
11. Carry out Risk Assessment.
12. Authorise and sign the work permit, transfer request and the transfer checklist for the carrier transfer.
10.21.2 Banksman
Shall confirm to the work site supervisor the following,
1 The work basket operations requirements is understood
2 The workbasket is checked, suitable for the operation and is correctly rigged. 3 Have confirmed the personnel working from the workbasket are fit and
understand the requirements; a demonstration of how to use the workbasket will be given if required.
4 Communications have been established on a dedicated radio channel. 5 The Banksman is clearly identified.
6 2 riggers to handle the tag lines.
7 Toolbox meeting held with all parties involved.
8 Only certified and marked equipment is used in the transfer. 9 The personnel are wearing the correct PPE.
10.21.3 Crane Driver
Shall confirm to the work site supervisor the following, Check 1 The crane is fully operational.
2 The environmental conditions are satisfactory for safe operation for the suspended workbasket.
3 The requirements and requirements for suspended workbasket operations have been understood.
4 Clear view of the Banksman.
5 Hands free communications have been established.
6 Daily crane checks have been completed and signed by the crane driver. 7 The workbasket and lifting gear are in a safe state of repair before use. 8 That the crane will carry no other load than the workbasket.
9 That the logbook entry will be made for each lift.
10.21.4 Riggers
Shall confirm to the Banksman/Deck Foreman the following Check 1 Have been briefed and understand the suspended workbasket requirements.
2 Familiar with handling the tag lines.
3 Know how to control the swing with the tag lines. 4 Follow instructions from the Banksman.
10.21.5 Personnel Working from the Work Basket
Shall confirm to the work site supervisor the following Check 1 Have been briefed and understand the suspended workbasket requirements.
2 Agreed to the work from the suspended workbasket.
3 Are physically fit and to declare if they suffer from Vertigo (Fear of height), etc. 4 Understand that the work is purely on voluntary basis.
5 Familiar with the method of suspended workbasket operations. 6 Observe all instructions from those in charge of the operation.
7 Insist on being accompanied by an experienced person if working from a suspended workbasket for the first time.
10.21.6 Crane owner’s Requirements
The owner of the crane used to suspended workbasket shall ensure that:
1. The crane is registered and approved for personnel basket transfer with BSP’s Technical Authority.
2. A logbook is available to enable the crane operator to make entries of each lift. 3. This logbook must be made available for inspection on request.
10.21.7 General Precautions
1. Moving the suspended workbasket shall be only under powered conditions in a slow controlled, cautious manner.
2. The load line hoist drum shall have controlled load lowering. Automatic brake shall apply in neutral position. Free fall is not allowed.
3. The total weight including suspended workbasket, rigging and occupants shall not exceed 50% of the cranes rated capacity for the radius and configuration used.
4. Rigging used for personnel hoisting must not be used for any other purpose and shall be kept apart from other rigging and clearly identified as only to be used for personnel hoisting.
5. The rigging must be capable of handling 10 times the maximum intended load.
10.21.8
Carrier Pre-use Inspection Check
10.21.9 Trial Lifts
1. A trial lift with the unoccupied work basket carrier loaded with ballast at 1.25 times the intended load, including personnel, shall be undertaken at the start of each day the suspended work basket will be used.
2. After the trial lift and just prior to hoisting the personnel, the workbasket and rigging shall be hoisted a few centimetres and inspected by the CAP.
10.22 Work Baskets (Fork Lift Trucks)
Hoisted workbasket operations are not a preferred method of carrying out work at elevated heights. However, it is recognised that there are situations where this method of operation maybe justified. All hoisted workbasket operations must be covered by an appropriate Brunei Shell Permit to Work, risk assessment and lift plan, and be conducted in accordance with this standard. Refer toAppendix 14for BSP’s risk matrix.
Slings must be fitted with a high visibility cover
The shackle type to be used is the bow or anchor type fitted with split pins, that is, bolt, nut and split-pin.
Check safety harnesses attachment points are secure. Longer leg
Slings are correctly attached and in good order
The following information is based on the guidance given in: - 1. LOLER 98, Reg 5
2. HSE Safety Notice 1/97 3. ASME B30.23
10.22.1 Requirements
The following covers the basic safety requirements that must be met when personnel are required to work from a ‘suspended work basket’ that has been raised by a fork lift truck.
10.22.2 Equipment
1. To ensure security and stability in use, when the working platform is loaded with personnel, tools and materials it must be fully compatible with the lift truck on which it is fitted.
2. The forklift shall be uniformly level within 1% of level grade and shall firm footing under all wheels.
3. The working platform must be effectively secured to the truck's elevating carriage or fork to prevent it being displaced or tipping unduly.
4. Suitable edge protection and toe boards.
5. Effective screens or guards must be fitted to prevent personnel in the carrier from coming into contact with dangerous parts on the fork truck.
6. Personnel carried on a platform must also be protected against any overhead hazards that might exist (e.g. from coming into contact with rafters in the ceiling).
7. Suitable warning labels must be present to inform personnel in the carrier of any dangers.
8. Suitable means of communication between the truck operator and the person(s) on the platform must be provided.